English verb conjugation
SHOULD PAT

Regular verb: pat - patted - patted

Affirmation

Simple form	V-ing form
I'd pat you'd pat he'd pat we'd pat you'd pat they'd pat	I'd be patting you'd be patting he'd be patting we'd be patting you'd be patting they'd be patting
Perfect	V-ing perfect
I should've patted you should've patted he should've patted we should've patted you should've patted they should've patted	I should've been patting you should've been patting he should've been patting we should've been patting you should've been patting they should've been patting

Negation

Simple form	V-ing form
I shouldn't pat you shouldn't pat he shouldn't pat we shouldn't pat you shouldn't pat they shouldn't pat	I shouldn't be patting you shouldn't be patting he shouldn't be patting we shouldn't be patting you shouldn't be patting they shouldn't be patting
Perfect	V-ing perfect
I shouldn't have patted you shouldn't have patted he shouldn't have patted we shouldn't have patted you shouldn't have patted they shouldn't have patted	I shouldn't have been patting you shouldn't have been patting he shouldn't have been patting we shouldn't have been patting you shouldn't have been patting they shouldn't have been patting

Interrogative form

Simple form	V-ing form
should I pat? should you pat? should he pat? should we pat? should you pat? should they pat?	should I be patting? should you be patting? should he be patting? should we be patting? should you be patting? should they be patting?
Perfect	V-ing perfect
should I have patted? should you have patted? should he have patted? should we have patted? should you have patted? should they have patted?	should I have been patting? should you have been patting? should he have been patting? should we have been patting? should you have been patting? should they have been patting?

Interro-negative form

Simple form	V-ing form
shouldn't I pat? shouldn't you pat? shouldn't he pat? shouldn't we pat? shouldn't you pat? shouldn't they pat?	shouldn't I be patting? shouldn't you be patting? shouldn't he be patting? shouldn't we be patting? shouldn't you be patting? shouldn't they be patting?
Perfect	V-ing perfect
shouldn't I have patted? shouldn't you have patted? shouldn't he have patted? shouldn't we have patted? shouldn't you have patted? shouldn't they have patted?	shouldn't I have been patting? shouldn't you have been patting? shouldn't he have been patting? shouldn't we have been patting? shouldn't you have been patting? shouldn't they have been patting?